Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
301: | 19531 × 66221 × 1644512641 × 3595452428681<13> × 172827552198815888791<21> × 453098474981964966729037498128705243871<39> × 1024695328986282069992499825233134533904997483977104628437112381314174950866343474485790683881553166943169107370165052251<121> |